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nitrogen gas generator
3.4 economy mode
When under normal operation, the generator continuously monitors the nitrogen outlet pressure. When the outlet pressure
reaches the pre-determined set-point for 5 minutes, the generator will automatically close the nitrogen outlet valve and stop
supplying gas. This first stage is indicated by the solid green economy symbol. If the outlet pressure continues to remain
equal to or greater than the pre-determined set-point for an additional 5 minutes, the generator will stop cycling and enter
economy mode. This second stage is indicated by the flashing green economy symbol.
When the nitrogen outlet pressure drops below the pre-determined set-point, the generator will instantly begin it’s start-up
cycle to ensure the CMS is primed before resuming normal operation.
3.5 purity dependent energy saving (PDES)
When fitted, the PDES system adds an additional O2 analyzer assembly which constantly monitors the oxygen content of the
gas stored within the buffer vessel, the purpose of the PDES system is to reduce air consumption and maximize efficiency.
The PDES system works along side with the standard O2 analyzer which monitors the purity of the gas being produced and
supplied to the application. Under normal operation, if the oxygen content stored within the buffer vessel and the gas being
supplied to the application are within specification, the generator control system will extend the cycle time delaying the
column change over. When the PDES function is active the green O2 symbol will begin to flash indicating the generator is
extending the cycle time.
If at any point either the gas stored within the buffer vessel or the gas being supplied to the application falls outside of the
required specification, the PDES feature will deactivate and the generator will resume normal operation.
